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Finding the Fourth Proportional to 369,129.84, 553,237.92 and 262,343.58

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Solution

The fourth proportional to 369,129.84, 553,237.92 and 262,343.58 is: 393,190.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,129.84 : 553,237.92 = 262,343.58 : x
  2. Step 2: Convert to fraction form
    369,129.84/553,237.92 = 262,343.58/x
  3. Step 3: Cross multiply
    369,129.84x = 553,237.92 × 262,343.58
  4. Step 4: Simplify right side
    369,129.84x = 145,138,416,524.55
  5. Step 5: Solve for x
    x = 145,138,416,524.55/369,129.84
  6. Step 6: Final answer
    x = 393,190.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.